'use strict';
exports.__esModule = true;
var _SystemRenderer2 = require('../SystemRenderer');
var _SystemRenderer3 = _interopRequireDefault(_SystemRenderer2);
var _MaskManager = require('./managers/MaskManager');
var _MaskManager2 = _interopRequireDefault(_MaskManager);
var _StencilManager = require('./managers/StencilManager');
var _StencilManager2 = _interopRequireDefault(_StencilManager);
var _FilterManager = require('./managers/FilterManager');
var _FilterManager2 = _interopRequireDefault(_FilterManager);
var _RenderTarget = require('./utils/RenderTarget');
var _RenderTarget2 = _interopRequireDefault(_RenderTarget);
var _ObjectRenderer = require('./utils/ObjectRenderer');
var _ObjectRenderer2 = _interopRequireDefault(_ObjectRenderer);
var _TextureManager = require('./TextureManager');
var _TextureManager2 = _interopRequireDefault(_TextureManager);
var _BaseTexture = require('../../textures/BaseTexture');
var _BaseTexture2 = _interopRequireDefault(_BaseTexture);
var _TextureGarbageCollector = require('./TextureGarbageCollector');
var _TextureGarbageCollector2 = _interopRequireDefault(_TextureGarbageCollector);
var _WebGLState = require('./WebGLState');
var _WebGLState2 = _interopRequireDefault(_WebGLState);
var _mapWebGLDrawModesToPixi = require('./utils/mapWebGLDrawModesToPixi');
var _mapWebGLDrawModesToPixi2 = _interopRequireDefault(_mapWebGLDrawModesToPixi);
var _validateContext = require('./utils/validateContext');
var _validateContext2 = _interopRequireDefault(_validateContext);
var _utils = require('../../utils');
var _pixiGlCore = require('pixi-gl-core');
var _pixiGlCore2 = _interopRequireDefault(_pixiGlCore);
var _const = require('../../const');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
var CONTEXT_UID = 0;
/**
* The WebGLRenderer draws the scene and all its content onto a webGL enabled canvas. This renderer
* should be used for browsers that support webGL. This Render works by automatically managing webGLBatchs.
* So no need for Sprite Batches or Sprite Clouds.
* Don't forget to add the view to your DOM or you will not see anything :)
*
* @class
* @memberof PIXI
* @extends PIXI.SystemRenderer
*/
var WebGLRenderer = function (_SystemRenderer) {
_inherits(WebGLRenderer, _SystemRenderer);
/**
*
* @param {number} [width=0] - the width of the canvas view
* @param {number} [height=0] - the height of the canvas view
* @param {object} [options] - The optional renderer parameters
* @param {HTMLCanvasElement} [options.view] - the canvas to use as a view, optional
* @param {boolean} [options.transparent=false] - If the render view is transparent, default false
* @param {boolean} [options.autoResize=false] - If the render view is automatically resized, default false
* @param {boolean} [options.antialias=false] - sets antialias. If not available natively then FXAA
* antialiasing is used
* @param {boolean} [options.forceFXAA=false] - forces FXAA antialiasing to be used over native.
* FXAA is faster, but may not always look as great
* @param {number} [options.resolution=1] - The resolution / device pixel ratio of the renderer.
* The resolution of the renderer retina would be 2.
* @param {boolean} [options.clearBeforeRender=true] - This sets if the CanvasRenderer will clear
* the canvas or not before the new render pass. If you wish to set this to false, you *must* set
* preserveDrawingBuffer to `true`.
* @param {boolean} [options.preserveDrawingBuffer=false] - enables drawing buffer preservation,
* enable this if you need to call toDataUrl on the webgl context.
* @param {boolean} [options.roundPixels=false] - If true Pixi will Math.floor() x/y values when
* rendering, stopping pixel interpolation.
*/
function WebGLRenderer(width, height) {
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
_classCallCheck(this, WebGLRenderer);
/**
* The type of this renderer as a standardised const
*
* @member {number}
* @see PIXI.RENDERER_TYPE
*/
var _this = _possibleConstructorReturn(this, _SystemRenderer.call(this, 'WebGL', width, height, options));
_this.type = _const.RENDERER_TYPE.WEBGL;
_this.handleContextLost = _this.handleContextLost.bind(_this);
_this.handleContextRestored = _this.handleContextRestored.bind(_this);
_this.view.addEventListener('webglcontextlost', _this.handleContextLost, false);
_this.view.addEventListener('webglcontextrestored', _this.handleContextRestored, false);
/**
* The options passed in to create a new webgl context.
*
* @member {object}
* @private
*/
_this._contextOptions = {
alpha: _this.transparent,
antialias: options.antialias,
premultipliedAlpha: _this.transparent && _this.transparent !== 'notMultiplied',
stencil: true,
preserveDrawingBuffer: options.preserveDrawingBuffer
};
_this._backgroundColorRgba[3] = _this.transparent ? 0 : 1;
/**
* Manages the masks using the stencil buffer.
*
* @member {PIXI.MaskManager}
*/
_this.maskManager = new _MaskManager2.default(_this);
/**
* Manages the stencil buffer.
*
* @member {PIXI.StencilManager}
*/
_this.stencilManager = new _StencilManager2.default(_this);
/**
* An empty renderer.
*
* @member {PIXI.ObjectRenderer}
*/
_this.emptyRenderer = new _ObjectRenderer2.default(_this);
/**
* The currently active ObjectRenderer.
*
* @member {PIXI.ObjectRenderer}
*/
_this.currentRenderer = _this.emptyRenderer;
_this.initPlugins();
/**
* The current WebGL rendering context, it is created here
*
* @member {WebGLRenderingContext}
*/
// initialize the context so it is ready for the managers.
if (options.context) {
// checks to see if a context is valid..
(0, _validateContext2.default)(options.context);
}
_this.gl = options.context || _pixiGlCore2.default.createContext(_this.view, _this._contextOptions);
_this.CONTEXT_UID = CONTEXT_UID++;
/**
* The currently active ObjectRenderer.
*
* @member {PIXI.WebGLState}
*/
_this.state = new _WebGLState2.default(_this.gl);
_this.renderingToScreen = true;
/**
* Holds the current state of textures bound to the GPU.
* @type {Array}
*/
_this.boundTextures = null;
_this._initContext();
/**
* Manages the filters.
*
* @member {PIXI.FilterManager}
*/
_this.filterManager = new _FilterManager2.default(_this);
// map some webGL blend and drawmodes..
_this.drawModes = (0, _mapWebGLDrawModesToPixi2.default)(_this.gl);
/**
* Holds the current shader
*
* @member {PIXI.Shader}
*/
_this._activeShader = null;
_this._activeVao = null;
/**
* Holds the current render target
*
* @member {PIXI.RenderTarget}
*/
_this._activeRenderTarget = null;
_this._nextTextureLocation = 0;
_this.setBlendMode(0);
return _this;
}
/**
* Creates the WebGL context
*
* @private
*/
WebGLRenderer.prototype._initContext = function _initContext() {
var gl = this.gl;
// restore a context if it was previously lost
if (gl.isContextLost() && gl.getExtension('WEBGL_lose_context')) {
gl.getExtension('WEBGL_lose_context').restoreContext();
}
var maxTextures = gl.getParameter(gl.MAX_TEXTURE_IMAGE_UNITS);
this.boundTextures = new Array(maxTextures);
this.emptyTextures = new Array(maxTextures);
// create a texture manager...
this.textureManager = new _TextureManager2.default(this);
this.textureGC = new _TextureGarbageCollector2.default(this);
this.state.resetToDefault();
this.rootRenderTarget = new _RenderTarget2.default(gl, this.width, this.height, null, this.resolution, true);
this.rootRenderTarget.clearColor = this._backgroundColorRgba;
this.bindRenderTarget(this.rootRenderTarget);
// now lets fill up the textures with empty ones!
var emptyGLTexture = new _pixiGlCore2.default.GLTexture.fromData(gl, null, 1, 1);
var tempObj = { _glTextures: {} };
tempObj._glTextures[this.CONTEXT_UID] = {};
for (var i = 0; i < maxTextures; i++) {
var empty = new _BaseTexture2.default();
empty._glTextures[this.CONTEXT_UID] = emptyGLTexture;
this.boundTextures[i] = tempObj;
this.emptyTextures[i] = empty;
this.bindTexture(null, i);
}
this.emit('context', gl);
// setup the width/height properties and gl viewport
this.resize(this.width, this.height);
};
/**
* Renders the object to its webGL view
*
* @param {PIXI.DisplayObject} displayObject - the object to be rendered
* @param {PIXI.RenderTexture} renderTexture - The render texture to render to.
* @param {boolean} [clear] - Should the canvas be cleared before the new render
* @param {PIXI.Transform} [transform] - A transform to apply to the render texture before rendering.
* @param {boolean} [skipUpdateTransform] - Should we skip the update transform pass?
*/
WebGLRenderer.prototype.render = function render(displayObject, renderTexture, clear, transform, skipUpdateTransform) {
// can be handy to know!
this.renderingToScreen = !renderTexture;
this.emit('prerender');
// no point rendering if our context has been blown up!
if (!this.gl || this.gl.isContextLost()) {
return;
}
this._nextTextureLocation = 0;
if (!renderTexture) {
this._lastObjectRendered = displayObject;
}
if (!skipUpdateTransform) {
// update the scene graph
var cacheParent = displayObject.parent;
displayObject.parent = this._tempDisplayObjectParent;
displayObject.updateTransform();
displayObject.parent = cacheParent;
// displayObject.hitArea = //TODO add a temp hit area
}
this.bindRenderTexture(renderTexture, transform);
this.currentRenderer.start();
if (clear !== undefined ? clear : this.clearBeforeRender) {
this._activeRenderTarget.clear();
}
displayObject.renderWebGL(this);
// apply transform..
this.currentRenderer.flush();
// this.setObjectRenderer(this.emptyRenderer);
this.textureGC.update();
this.emit('postrender');
};
/**
* Changes the current renderer to the one given in parameter
*
* @param {PIXI.ObjectRenderer} objectRenderer - The object renderer to use.
*/
WebGLRenderer.prototype.setObjectRenderer = function setObjectRenderer(objectRenderer) {
if (this.currentRenderer === objectRenderer) {
return;
}
this.currentRenderer.stop();
this.currentRenderer = objectRenderer;
this.currentRenderer.start();
};
/**
* This should be called if you wish to do some custom rendering
* It will basically render anything that may be batched up such as sprites
*
*/
WebGLRenderer.prototype.flush = function flush() {
this.setObjectRenderer(this.emptyRenderer);
};
/**
* Resizes the webGL view to the specified width and height.
*
* @param {number} width - the new width of the webGL view
* @param {number} height - the new height of the webGL view
*/
WebGLRenderer.prototype.resize = function resize(width, height) {
// if(width * this.resolution === this.width && height * this.resolution === this.height)return;
_SystemRenderer3.default.prototype.resize.call(this, width, height);
this.rootRenderTarget.resize(width, height);
if (this._activeRenderTarget === this.rootRenderTarget) {
this.rootRenderTarget.activate();
if (this._activeShader) {
this._activeShader.uniforms.projectionMatrix = this.rootRenderTarget.projectionMatrix.toArray(true);
}
}
};
/**
* Resizes the webGL view to the specified width and height.
*
* @param {number} blendMode - the desired blend mode
*/
WebGLRenderer.prototype.setBlendMode = function setBlendMode(blendMode) {
this.state.setBlendMode(blendMode);
};
/**
* Erases the active render target and fills the drawing area with a colour
*
* @param {number} [clearColor] - The colour
*/
WebGLRenderer.prototype.clear = function clear(clearColor) {
this._activeRenderTarget.clear(clearColor);
};
/**
* Sets the transform of the active render target to the given matrix
*
* @param {PIXI.Matrix} matrix - The transformation matrix
*/
WebGLRenderer.prototype.setTransform = function setTransform(matrix) {
this._activeRenderTarget.transform = matrix;
};
/**
* Binds a render texture for rendering
*
* @param {PIXI.RenderTexture} renderTexture - The render texture to render
* @param {PIXI.Transform} transform - The transform to be applied to the render texture
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.bindRenderTexture = function bindRenderTexture(renderTexture, transform) {
var renderTarget = void 0;
if (renderTexture) {
var baseTexture = renderTexture.baseTexture;
if (!baseTexture._glRenderTargets[this.CONTEXT_UID]) {
// bind the current texture
this.textureManager.updateTexture(baseTexture, 0);
}
this.unbindTexture(baseTexture);
renderTarget = baseTexture._glRenderTargets[this.CONTEXT_UID];
renderTarget.setFrame(renderTexture.frame);
} else {
renderTarget = this.rootRenderTarget;
}
renderTarget.transform = transform;
this.bindRenderTarget(renderTarget);
return this;
};
/**
* Changes the current render target to the one given in parameter
*
* @param {PIXI.RenderTarget} renderTarget - the new render target
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.bindRenderTarget = function bindRenderTarget(renderTarget) {
if (renderTarget !== this._activeRenderTarget) {
this._activeRenderTarget = renderTarget;
renderTarget.activate();
if (this._activeShader) {
this._activeShader.uniforms.projectionMatrix = renderTarget.projectionMatrix.toArray(true);
}
this.stencilManager.setMaskStack(renderTarget.stencilMaskStack);
}
return this;
};
/**
* Changes the current shader to the one given in parameter
*
* @param {PIXI.Shader} shader - the new shader
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.bindShader = function bindShader(shader) {
// TODO cache
if (this._activeShader !== shader) {
this._activeShader = shader;
shader.bind();
// automatically set the projection matrix
shader.uniforms.projectionMatrix = this._activeRenderTarget.projectionMatrix.toArray(true);
}
return this;
};
/**
* Binds the texture. This will return the location of the bound texture.
* It may not be the same as the one you pass in. This is due to optimisation that prevents
* needless binding of textures. For example if the texture is already bound it will return the
* current location of the texture instead of the one provided. To bypass this use force location
*
* @param {PIXI.Texture} texture - the new texture
* @param {number} location - the suggested texture location
* @param {boolean} forceLocation - force the location
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.bindTexture = function bindTexture(texture, location, forceLocation) {
texture = texture || this.emptyTextures[location];
texture = texture.baseTexture || texture;
texture.touched = this.textureGC.count;
if (!forceLocation) {
// TODO - maybe look into adding boundIds.. save us the loop?
for (var i = 0; i < this.boundTextures.length; i++) {
if (this.boundTextures[i] === texture) {
return i;
}
}
if (location === undefined) {
this._nextTextureLocation++;
this._nextTextureLocation %= this.boundTextures.length;
location = this.boundTextures.length - this._nextTextureLocation - 1;
}
} else {
location = location || 0;
}
var gl = this.gl;
var glTexture = texture._glTextures[this.CONTEXT_UID];
if (!glTexture) {
// this will also bind the texture..
this.textureManager.updateTexture(texture, location);
} else {
// bind the current texture
this.boundTextures[location] = texture;
gl.activeTexture(gl.TEXTURE0 + location);
gl.bindTexture(gl.TEXTURE_2D, glTexture.texture);
}
return location;
};
/**
* unbinds the texture ...
*
* @param {PIXI.Texture} texture - the texture to unbind
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.unbindTexture = function unbindTexture(texture) {
var gl = this.gl;
texture = texture.baseTexture || texture;
for (var i = 0; i < this.boundTextures.length; i++) {
if (this.boundTextures[i] === texture) {
this.boundTextures[i] = this.emptyTextures[i];
gl.activeTexture(gl.TEXTURE0 + i);
gl.bindTexture(gl.TEXTURE_2D, this.emptyTextures[i]._glTextures[this.CONTEXT_UID].texture);
}
}
return this;
};
/**
* Creates a new VAO from this renderer's context and state.
*
* @return {VertexArrayObject} The new VAO.
*/
WebGLRenderer.prototype.createVao = function createVao() {
return new _pixiGlCore2.default.VertexArrayObject(this.gl, this.state.attribState);
};
/**
* Changes the current Vao to the one given in parameter
*
* @param {PIXI.VertexArrayObject} vao - the new Vao
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.bindVao = function bindVao(vao) {
if (this._activeVao === vao) {
return this;
}
if (vao) {
vao.bind();
} else if (this._activeVao) {
// TODO this should always be true i think?
this._activeVao.unbind();
}
this._activeVao = vao;
return this;
};
/**
* Resets the WebGL state so you can render things however you fancy!
*
* @return {PIXI.WebGLRenderer} Returns itself.
*/
WebGLRenderer.prototype.reset = function reset() {
this.setObjectRenderer(this.emptyRenderer);
this._activeShader = null;
this._activeRenderTarget = this.rootRenderTarget;
// bind the main frame buffer (the screen);
this.rootRenderTarget.activate();
this.state.resetToDefault();
return this;
};
/**
* Handles a lost webgl context
*
* @private
* @param {WebGLContextEvent} event - The context lost event.
*/
WebGLRenderer.prototype.handleContextLost = function handleContextLost(event) {
event.preventDefault();
};
/**
* Handles a restored webgl context
*
* @private
*/
WebGLRenderer.prototype.handleContextRestored = function handleContextRestored() {
this._initContext();
this.textureManager.removeAll();
};
/**
* Removes everything from the renderer (event listeners, spritebatch, etc...)
*
* @param {boolean} [removeView=false] - Removes the Canvas element from the DOM.
* See: https://github.com/pixijs/pixi.js/issues/2233
*/
WebGLRenderer.prototype.destroy = function destroy(removeView) {
this.destroyPlugins();
// remove listeners
this.view.removeEventListener('webglcontextlost', this.handleContextLost);
this.view.removeEventListener('webglcontextrestored', this.handleContextRestored);
this.textureManager.destroy();
// call base destroy
_SystemRenderer.prototype.destroy.call(this, removeView);
this.uid = 0;
// destroy the managers
this.maskManager.destroy();
this.stencilManager.destroy();
this.filterManager.destroy();
this.maskManager = null;
this.filterManager = null;
this.textureManager = null;
this.currentRenderer = null;
this.handleContextLost = null;
this.handleContextRestored = null;
this._contextOptions = null;
this.gl.useProgram(null);
if (this.gl.getExtension('WEBGL_lose_context')) {
this.gl.getExtension('WEBGL_lose_context').loseContext();
}
this.gl = null;
// this = null;
};
return WebGLRenderer;
}(_SystemRenderer3.default);
exports.default = WebGLRenderer;
_utils.pluginTarget.mixin(WebGLRenderer);
//# sourceMappingURL=WebGLRenderer.js.map
